The order of teaching math topics in fourth grade may vary depending on the curriculum and teaching method used, but in general, a good starting point for teaching math in fourth grade would be:

1. Basic multiplication and division facts and strategies
2. Place value and number sense up to 100,000
3. Basic operations (addition, subtraction, multiplication, division) with numbers up to 10,000
4. Fractions (including adding, subtracting, multiplying, and dividing fractions)
5. Measurement and time (including conversions between units)
6. Geometry and shapes (including perimeter, area, volume, and coordinate grids)
7. Basic algebraic concepts (including patterns, functions, and equations)
8. Data analysis and probability (including mean, median, mode, and range)
9. Basic geometry concepts (angles, points, lines, planes, and symmetry)
10. Rounding and estimation
11. Telling time to the nearest minute
12. Money and financial literacy
13. Decimal operations (addition, subtraction, multiplication, and division)
14. Multi-digit whole number and decimal operations
15. Long division
16. Prime and composite numbers
17. Problem-solving and reasoning
18. Graphing and data interpretation
19. Basic concepts of Ratio and Proportion
20. Basic concepts of Measurement in geometry(circumference, area of complex shapes)
21. Basic concepts of volume and capacity
22. Basic concepts of mass and weight
23. Basic concepts of temperature
24. Mental Maths